From: Kuogee Hsieh Date: Tue, 10 Aug 2021 15:29:22 +0000 (-0700) Subject: drm/msm/dp: add drm debug logs to dp_pm_resume/suspend X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=26ae419cd9eca4268c267a1910bdac4ae6ef4896;p=linux.git drm/msm/dp: add drm debug logs to dp_pm_resume/suspend Changes in V2: -- correct Fixes text -- drop commit text Fixes: 601f0479c583 ("drm/msm/dp: add logs across DP driver for ease of debugging") Signed-off-by: Kuogee Hsieh Reviewed-by: Stephen Boyd Link: https://lore.kernel.org/r/1628609362-2109-1-git-send-email-khsieh@codeaurora.org Signed-off-by: Rob Clark --- diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index c67d583d34cff..419fd4a14cbfa 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -1280,6 +1280,9 @@ static int dp_pm_resume(struct device *dev) mutex_lock(&dp->event_mutex); + DRM_DEBUG_DP("Before, core_inited=%d power_on=%d\n", + dp->core_initialized, dp_display->power_on); + /* start from disconnected state */ dp->hpd_state = ST_DISCONNECTED; @@ -1311,6 +1314,10 @@ static int dp_pm_resume(struct device *dev) else dp->dp_display.is_connected = false; + DRM_DEBUG_DP("After, sink_count=%d is_connected=%d core_inited=%d power_on=%d\n", + dp->link->sink_count, dp->dp_display.is_connected, + dp->core_initialized, dp_display->power_on); + mutex_unlock(&dp->event_mutex); return 0; @@ -1326,6 +1333,9 @@ static int dp_pm_suspend(struct device *dev) mutex_lock(&dp->event_mutex); + DRM_DEBUG_DP("Before, core_inited=%d power_on=%d\n", + dp->core_initialized, dp_display->power_on); + if (dp->core_initialized == true) { /* mainlink enabled */ if (dp_power_clk_status(dp->power, DP_CTRL_PM)) @@ -1339,6 +1349,9 @@ static int dp_pm_suspend(struct device *dev) /* host_init will be called at pm_resume */ dp->core_initialized = false; + DRM_DEBUG_DP("After, core_inited=%d power_on=%d\n", + dp->core_initialized, dp_display->power_on); + mutex_unlock(&dp->event_mutex); return 0;